<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="/login" method="post">
    <c:if test="${not empty param.error}" >
        Invalid username and password.
    </c:if>
    <c:if test="${not empty param.logout}" >  
        You have been logged out.  
    </c:if> 
    <p>账号：<input type="text" name="username" value="xh"/></p>
    <p>密码：<input type="text" name="password" value="123"/></p>
    记住账户：<input type="checkbox" name="rememberMe" value="true"/>
    <p><input type="submit" value="登录"/></p>
</form>
</body>
</html>